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Microporous fibers with improved properties

  • US 5,766,760 A
  • Filed: 09/04/1996
  • Issued: 06/16/1998
  • Est. Priority Date: 09/04/1996
  • Status: Expired due to Fees
First Claim
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1. A porous fiber which includes a fiber material having a plurality of elongate pores therein, and wherein said pores are formed in the fiber material which has been expanded and stretched away from filler material which is included in said fiber material, said fiber having:

  • a denier of about 50 or less;

    a percent elongation at break of about 30% or morea tensile strength at break of about 200 MPa or more; and

    having said pores distributed over an outer surface of said fiber with an average distributional density of about 0.01 pores, or more, per μ

    m2 of said outer surface.

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